Besko Wastewater Treatment Plant: Secondary Treatment in Podkarpackie, Poland

The Besko wastewater treatment plant is located in the village of Besko, within the gmina Besko, powiat sanocki, in the Podkarpackie Voivodeship of southeastern Poland. This facility serves a population of 2,174, classifying it as a small agglomeration under Polish and EU regulations. As a secondary treatment plant, Besko meets the minimum treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The plant has a designed capacity of 4,584 m³/day and currently treats an average daily flow of 309.98 m³/day, indicating significant available capacity for future growth or seasonal variations. The treated effluent from Besko is discharged into local watercourses that ultimately drain into the Wisłok River, a tributary of the San River, which flows into the Vistula River and then into the Baltic Sea. The plant plays a key role in protecting the water quality of these rivers and the downstream aquatic ecosystems.

The Besko plant discharges into the Wisłok River basin, part of the larger Vistula catchment that drains into the Baltic Sea. The region is characterized by forested hills and agricultural land, with the Wisłok supporting diverse fish populations and serving as a habitat for aquatic birds. The plant's secondary treatment helps reduce organic pollution and nutrient loads, protecting downstream water quality in the San and Vistula rivers.